ABPYX vs. BWBIX

Last updated Jun 6, 2026

ABPYX (The AB Portfolios - AB Sustainable Thematic Balanced Portfolio) and BWBIX (Baron WealthBuilder Fund) are both Diversified Portfolio funds. Over the past 5 years, ABPYX returned 1.93%/yr vs 4.70%/yr for BWBIX. Their correlation of 0.84 suggests significant overlap in exposure. ABPYX charges 0.71%/yr vs 0.05%/yr for BWBIX.

Performance

ABPYX vs. BWBIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in The AB Portfolios - AB Sustainable Thematic Balanced Portfolio (ABPYX) and Baron WealthBuilder Fund (BWBIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ABPYX achieves a 3.43% return, which is significantly higher than BWBIX's 2.44% return.

ABPYX

• 1D: 0.00%
• 1M: 0.84%
• YTD: 3.43%
• 6M: 2.14%
• 1Y: 10.34%
• 3Y*: 8.14%
• 5Y*: 1.93%
• 10Y*: 3.93%

BWBIX

• 1D: 2.87%
• 1M: 4.37%
• YTD: 2.44%
• 6M: 2.51%
• 1Y: 14.11%
• 3Y*: 14.65%
• 5Y*: 4.70%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

ABPYX vs. BWBIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
ABPYX The AB Portfolios - AB Sustainable Thematic Balanced Portfolio	3.43%	6.68%	5.94%	14.47%	-19.36%	8.86%	4.62%	14.94%	-5.48%
BWBIX Baron WealthBuilder Fund	2.44%	10.23%	19.62%	25.77%	-32.58%	14.76%	62.85%	36.41%	-12.02%

Correlation

The correlation between ABPYX and BWBIX is 0.76, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.76
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (All Time) Calculated using the full available price history since May 22, 2018	0.84

The correlation between ABPYX and BWBIX shifts across timeframes, from 0.76 (1 year) to 0.87 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

ABPYX vs. BWBIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

ABPYX

ABPYX Risk / Return Rank: 16
ABPYX Sharpe Ratio Rank: 19
ABPYX Sortino Ratio Rank: 18
ABPYX Omega Ratio Rank: 18
ABPYX Calmar Ratio Rank: 13
ABPYX Martin Ratio Rank: 14

BWBIX

BWBIX Risk / Return Rank: 13
BWBIX Sharpe Ratio Rank: 12
BWBIX Sortino Ratio Rank: 14
BWBIX Omega Ratio Rank: 12
BWBIX Calmar Ratio Rank: 13
BWBIX Martin Ratio Rank: 14

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

ABPYX vs. BWBIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for The AB Portfolios - AB Sustainable Thematic Balanced Portfolio (ABPYX) and Baron WealthBuilder Fund (BWBIX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	ABPYX	BWBIX	Difference
Sharpe ratio: Return per unit of total volatility	1.17	0.89	+0.28
Sortino ratio: Return per unit of downside risk	1.72	1.44	+0.28
Omega ratio: Gain probability vs. loss probability	1.21	1.17	+0.04
Calmar ratio: Return relative to maximum drawdown	1.13	1.12	+0.01
Martin ratio: Return relative to average drawdown	3.65	3.70	-0.04
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ABPYX vs. BWBIX - Sharpe Ratio Comparison

The current ABPYX Sharpe Ratio is 1.17, which is higher than the BWBIX Sharpe Ratio of 0.89. The chart below compares the historical Sharpe Ratios of ABPYX and BWBIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	ABPYX	BWBIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.17	0.89	+0.28
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.16	0.22	-0.06
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.39	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.50	0.54	-0.04

Drawdowns

ABPYX vs. BWBIX - Drawdown Comparison

The maximum ABPYX drawdown since its inception was -28.37%, smaller than the maximum BWBIX drawdown of -39.14%. Use the drawdown chart below to compare losses from any high point for ABPYX and BWBIX.

Drawdown Indicators

	ABPYX	BWBIX	Difference
Max Drawdown Largest peak-to-trough decline	-28.37%	-39.14%	+10.77%
Max Drawdown (1Y) Largest decline over 1 year	-9.17%	-11.65%	+2.48%
Max Drawdown (3Y) Largest decline over 3 years	-15.63%	-21.59%	+5.96%
Max Drawdown (5Y) Largest decline over 5 years	-26.00%	-39.14%	+13.14%
Max Drawdown (10Y) Largest decline over 10 years	-26.00%	—	—
Current Drawdown Current decline from peak	-0.67%	0.00%	-0.67%
Average Drawdown Average peak-to-trough decline	-3.93%	-11.71%	+7.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.84%	3.53%	-0.69%

Volatility

ABPYX vs. BWBIX - Volatility Comparison

The current volatility for The AB Portfolios - AB Sustainable Thematic Balanced Portfolio (ABPYX) is 3.07%, while Baron WealthBuilder Fund (BWBIX) has a volatility of 4.48%. This indicates that ABPYX experiences smaller price fluctuations and is considered to be less risky than BWBIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ABPYX	BWBIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.07%	4.48%	-1.41%
Volatility (6M) Calculated over the trailing 6-month period	6.77%	11.37%	-4.60%
Volatility (1Y) Calculated over the trailing 1-year period	8.85%	14.68%	-5.83%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.02%	21.11%	-9.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	10.18%	23.15%	-12.97%

ABPYX vs. BWBIX - Expense Ratio Comparison

ABPYX has a 0.71% expense ratio, which is higher than BWBIX's 0.05% expense ratio.

Dividends

ABPYX vs. BWBIX - Dividend Comparison

ABPYX's dividend yield for the trailing twelve months is around 1.46%, less than BWBIX's 7.43% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ABPYX The AB Portfolios - AB Sustainable Thematic Balanced Portfolio	1.46%	1.51%	1.51%	1.14%	4.40%	3.61%	3.73%	3.72%	1.08%	7.92%	2.76%	2.35%
BWBIX Baron WealthBuilder Fund	7.43%	7.61%	0.77%	0.06%	3.21%	3.75%	1.24%	3.51%	0.14%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both ABPYX and BWBIX in my portfolio?

ABPYX and BWBIX have a correlation of 0.76, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ABPYX or BWBIX?

BWBIX has higher volatility (4.48%) compared to ABPYX (3.07%). In terms of maximum drawdown, ABPYX dropped -28.37% vs BWBIX's -39.14%.

Which has better risk-adjusted returns?

ABPYX currently has the higher Sharpe Ratio (1.17 vs 0.89), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.